Marvel's 'Avengers': From comic book page to the big screen - pictures

Joss Whedon's superhero epic has its roots in Marvel comics, with the team debuting in September 1963 in The Avengers #1. Dubbed 'Earth's Mightiest Heroes', the original group united Iron Man, Thor, Wasp, Ant-Man and Hulk and has had a rotating cast over the past five decades.